1672.5% is the change from 40 to 709
Calculation steps:
[( 709 - 40 ) ÷ 40] x 100 = 1672.5%
Formula
Percentage change = [(709 - 40) / 40] x 100
Subtract the new number by the original number
709 - 40 = 669
669 ÷ 40 = 16.725
16.725 x 100 = 1672.5%
Example